On MacOS 10.X conflicts with Graphic Cards are recognized quite rarely, however, if you face issues with the resulting calibration quality, verify these Presets:

Turn off the Auto-Brightness-Adjustment in System Preferences -> Displays. This feature is present for Mac Laptop Displays with a built-in camera.

Make sure, that the Contrast slider is set to ‘Normal’ (left position) in System Preferences -> Universal Access. Do never apply this option within a monitor calibration procedure.

Turn off the option ‘Translucent Menu Bar’ in System Preferences -> Desktop&Appearance.

Turn off the Energy Saving options for Laptop Displays in System Preferences -> Energy

If these presets do not solve your issue, please do the following in exactly this order:

Quit i1Profiler if it is running

Open your computer’s System Preferences

Click on “Displays”.

For the display you are trying to profile, click on “Color” tab

Uncheck the “Show profiles for this display only” option

Find a profile called “DisplayProfile_Linear.icc” in the profile list and copy to your /Library/ColorSync/Profiles folder. If the linear profile is missing, control click the application icon and select "Show package contents". The linear profile is stored in the "Contents > "Resources" folder (ColorMunki Display) or the "Contents" > "MacOS" > "Profiles" folder (i1Profiler) in the application’s package.

Click on this profile (the LUTs should change, because they are set to linear now)